L. Yes; for before, each of them only touched two of the others, but now each of the two in the middle touches the other three.  Take away one of the outsiders, Isabel:  now you have three in a triangle—­the smallest triangle you can make out of the beads.  Now put a rod of three beads on at one side.  So, you have a triangle of six beads; but just the shape of the first one.  Next a rod of four on the side of that; and you have a triangle of ten beads:  then a rod of five on the side of that; and you have a triangle of fifteen.  Thus you have a square with five beads on the side, and a triangle with five beads on the side; equal-sided, therefore, like the square.  So, however few or many you may be, you may soon learn how to crystallize quickly into these two figures, which are the foundation of form in the commonest, and therefore actually the most important, as well as in the rarest, and therefore, by our esteem, the most important, minerals of the world.  Look at this in my hand.

Violet.  Why, it is leaf gold!

L. Yes; but beaten by no man’s hammer; or rather, not beaten at all, but woven.  Besides, feel the weight of it.  There is gold enough there to gild the walls and ceiling, if it were beaten thin.

Violet.  How beautiful!  And it glitters like a leaf covered with frost.

L. You only think it so beautiful because you know it is gold.  It is not prettier, in reality, than a bit of brass for it is Transylvanian gold; and they say there is a foolish gnome in the mines there, who is always wanting to live in the moon, and so alloys all the gold with a little silver.  I don’t know how that may be, but the silver always is in the gold, and if he does it, it’s very provoking of him, for no gold is woven so fine anywhere else.

Mary (who has been looking through her magnifying glass).  But this is not woven.  This is all made of little triangles.

L. Say “patched,” then, if you must be so particular.  But if you fancy all those triangles, small as they are (and many of them are infinitely small), made up again of rods, and those of grains, as we built our great triangle of the beads, what word will you take for the manufacture?

May.  There’s no word—­it is beyond words.

L. Yes, and that would matter little, were it not beyond thoughts too.  But, at all events, this yellow leaf of dead gold, shed, not from the ruined woodlands, but the ruined rocks, will help you to remember the second kind of crystals, leaf-crystals, or foliated crystals, though I show you the form in gold first only to make a strong impression on you, for gold is not generally or characteristically, crystallized in leaves; the real type of foliated crystals is this thing, Mica; which if you once feel well and break well, you will always know again; and you will often have occasion to know it, for you will find it everywhere nearly, in hill countries.